Nut-lock



No. 608,607. r Patented Aug. 9, I898. J. 0. a c. n. KAFADEB.

NUT LOCK.

(Application filed June 10, 1897,) (No Model.)

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JAMES OLIVER KAFADER AND CHARLES DANIEL KAFADER, OF FORT BIDWVELL, CALIFORNIA.

NUT LOCK.

SPECIFICATION forming part of Letters Patent No. 608,607, dated August 9, 1898. Application filed JunelO, 1897. Serial No. 640,231. (Nombdela To all whom t'tmcty concern:

Be it known that we, JAMES OLIVER KAFA- DER and CHARLES DANIEL KAFADER, of Fort Bidwell, in the eountyof Modoc and State of Oalifornia,have invented certain new and useful Improvements in Lockin g-Nuts5 and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to locking-nuts.

Our object is to provide alocking-nut of improved construction which will be cheap and strong and, owing to the peculiar construction and arrangement ofits parts, be adapted to permit the nut being screwed up as far as desirable and yet automatically look at any desired point. V

A further object is the provision of a tool of improved construction especially adaptable for use in connection with our improved locking-nut.

The construction and operation of the parts will be set forth in detail in the following description and the novel features recited in the appended claim.

In the accompanying drawings, Figure 1 is a side elevation; Fig. 2,*a longitudinal section on line 00 00, Fig. 1; Fig. 3, a cross-section on line y y, Fig. 1; Fig. 4, a detail view looking toward the ratchet-wheel and the nut and showing the locking ring applied thereto; Fig. 5, a perspective detail of the lockingring; Fig. 6, a similar View of the lockingdisk, and Fig. '7 a view of the unlocking-tool.

A bolt is shown at 1.,the same being provided with a longitudinally-extending groove 2.

The numeral 3 designates a locking disk or washer, which is provided with a central aperture at to receive the shank of the bolt and has a projection or lug 5, adapted to fit in the groove 2. The said disk has diametricallydisposed slots or openings 6. It will be seen that the lug 5 by engaging with the bolt prevents the disk f-roln turning. The numeral 7 designates a nut which has a ratchet-wheel 8 projecting from one face thereof.

Our improved locking-ring is shown at 9, the same being constructed of a single piece of spring metal, preferably steel. This ring is adapted to encircle the ratchet-wheel and lie flush with the face thereof. The ring is not endless, as it is formed of a single piece of metal whose ends are shown at 10 and 11. The end 10 has a locking-catch 12, adapted to engage with the ratchet-wheel and provided with an inclined face 13, so that it can ride on said ratchet when turned in the proper direction. The said end is also provided with a notched ear 14. The other end of the ring has a notch 15. The numerals 16 and 17 designate lugs which project from the ring and are adapted for reception in the slots 6.

The tool for releasing the ring, so that the nut can be unscrewed, is formed of a single piece of resilient metal, preferably steel, 18. This tool is made in the form of a loop with its ends located adjacent to each other. One of said end portions is raised, asat 19. The numeral 20 designates a lever pivoted to the other end portion of the tool. and provided with a cam 21, adapted to engage with the raised portion 19, so that the end portions can be spread. One end of the tool is formed into a curved finger 22 and a catch 23. The other end has a catch 24:. These catches are adapted to engage with those on the lockingring,while the finger is adapted to rest against said ring. It will be seen that when the catches are engaged and the lever operated the end portions of the tool will be spread, thereby spreading the locking-ring and causing its catch to disengage from the ratchetwheel and the end, so that the latter can be unscrewed. The locking-disk is first placed on the bolt and the locking ring placed against said disk, so that the lugs of said ring enter the slots in the disk. The end is then screwed on, and when its ratchet-wheel reaches the inner catch of the ring said catch rides on the wheel until the nut has been screwed up snugly against the disk. The nut cannot, however, be unscrewed, as the catch and ratchet-wheel prevent this. WVhen it is desirable to unscrew the end, it is necessary to employ the tool for spreading the'lockingring.

Slight changes could be resorted to in car rying out our ideas without detracting from any of the advantages of the device, and

hence it is to he understood that we reserve the right to make all such changes as come within the spirit and scope of the invention.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

The combination with a bolt, of a nut having a ratchet-wheel and a locking-ring encircling the ratchet-wheel, which ring is formed of a single piece of resilient material having separated ends, and having an inwardly-projecting catch adapted to engage with said wheel and also provided with outwardly-extending ears or catches on its end portions adapted for the reception of a tool to expand said ring.

In testimony whereof we have signed this specification in the presence of two subscribing witnesses.

JAMES OLIVER KAFADER.

CHARLES DANIEL KAFADER Witnesses:

GEORGE RUssELL,

B. F. GREEN. 

